Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:33:32 2012

Optimize a model with 309 rows, 314 columns and 1084 nonzeros
Presolve removed 0 rows and 22 columns
Presolve time: 0.00s
Presolved: 309 rows, 292 columns, 1062 nonzeros
Variable types: 0 continuous, 292 integer (291 binary)
Found heuristic solution: objective 52.0000000

Root relaxation: objective 0.000000e+00, 170 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    0.00000    0  116   52.00000    0.00000   100%     -    0s
H    0     0                      44.0000000    0.00000   100%     -    0s
H    0     0                      39.0000000    0.00000   100%     -    0s
H    0     0                      36.0000000    0.00000   100%     -    0s
     0     0    0.17839    0  118   36.00000    0.17839   100%     -    0s
H    0     0                      32.0000000    0.17839  99.4%     -    0s
H    0     0                      28.0000000    0.17839  99.4%     -    0s
H    0     0                      25.0000000    0.17839  99.3%     -    0s
     0     0    0.74030    0  120   25.00000    0.74030  97.0%     -    0s
H    0     0                      14.0000000    0.74030  94.7%     -    0s
     0     0    0.74087    0  128   14.00000    0.74087  94.7%     -    0s
     0     0    0.74087    0  127   14.00000    0.74087  94.7%     -    0s
     0     2    0.74493    0  124   14.00000    0.74493  94.7%     -    0s
H   27    27                       8.0000000    1.67814  79.0%  21.5    0s

Cutting planes:
  Gomory: 3
  Mod-K: 2

Explored 647 nodes (5880 simplex iterations) in 0.28 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%